Custom sound "forest" doesn't play correctly

[.granQ.]

What is it that trigger the custom sound for forest?

[Jakerod]

Quote[/b] ]class EnvSounds: CfgEnvSounds
{
class Rain
{
name="$STR_DN_RAIN";
sound[]={"\sound\rain_hard.wss",0.002000,1};
soundNight[]={"\sound\rain_hard.wss",0.002000,1};
};
class Sea
{
name="$STR_DN_SEA";
sound[]={"\sound\wave_break.wss",0.000950,1};
soundNight[]={"\sound\wave_break.wss",0.000700,1};
};
class Meadows
{
name="$STR_DN_MEADOWS";
sound[]={"\sound\wind_whistle.wss",0.001216,1};
soundNight[]={"\sound\wind_whistle.wss",0.010316,1};
};
class Trees
{
name="$STR_DN_TREES";
sound[]={"\sound\treesbirds.wss",0.000316,1};
soundNight[]={"\sound\treesbirds.wss",0.000316,1};
};
class Hills
{
name="$STR_DN_HILLS";
sound[]={"\sound\wind_whistle.wss",0.000052,1};
soundNight[]={"\sound\wind_whistle.wss",0.000052,1};

};

Taken from the config on my island, i have no idea if that would work though since i never really got it working. i copy and pasted from the Tonal config and switched the names around.